scholarly journals The Accuracy of Computer-Assisted Implant Surgery Performed Using Fully Guided Templates versus Pilot-Drill Guided Templates

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Daniele De Santis ◽  
Luciano Malchiodi ◽  
Alessandro Cucchi ◽  
Adam Cybulski ◽  
Giuseppe Verlato ◽  
...  
Keyword(s):  
Safety Margin ◽  
Study Groups ◽  
Computer Assisted ◽  
Implant Surgery ◽  
Guided Surgery ◽  
Implant Placement ◽  
Cad Cam ◽  
Group A ◽  
The Mean ◽  
Group B

Purpose. Computer-assisted stereolithographically guided surgery allows an ideal implant placement for prosthetic restoration. Two types of stereolithographic templates are currently available: a fully guided template and a pilot-drill guided template. The purpose of this study was (i) to evaluate the accuracy of implant insertion using these types of surgical templates and (ii) to define parameters influencing accuracy. Materials and Methods. 20 patients were enrolled and divided into 2 study groups: in group A, implants were placed using CAD-CAM templates with fully guided sleeves; in group B, implants were placed with a template with only pilot-drill guided sleeves. Pre- and postoperative computed tomographies were used to measure differences between final positions of implants and virtually planned positions. Three linear discrepancies (coronal, apical, and depth) and two angular ones (buccolingual and mesiodistal) were measured. Correlations between accuracy and jaws of interest, implant length and diameters, and type of edentulism were also analysed. Results. A total of 50 implants were inserted in 15 patients using CAD-CAM templates: 23 implants in group A and 27 in group B. The mean coronal deviations were 1.16 and 1.11 mm (P = 0.35), respectively; the mean apical deviations were 1.65 and 1.71 mm (P = 0.22); the mean depth deviations were 0.95 and −0.68 mm (P = 0.032); the mean buccolingual angular deviations were 4.16° and 6.72° (P = 0.042); and the mean mesiodistal ones were 2.81° and 5.61° (P = 0.029). In addition, the accuracy was statistically influenced only by implant diameter for coronal discrepancy (P = 0.035) and by jaw of interest for mesiodistal angulation (P = 0.045). Conclusion. Fully guided implant surgery was more accurate than pilot-drill guided surgery for different parameters. For both types of surgery, a safety margin of at least 2mm should be preserved during implant planning to prevent damage to nearby anatomical structures.

scholarly journals A CASE–CONTROL STUDY TO ASSESS AND COMPARE THE EFFICACY OF 0.2% CHLORHEXIDINE AND 0.25% SODIUM HYPOCHLORITE MOUTHWASH IN TREATMENT OF CHRONIC GINGIVITIS

2018 ◽  
Vol 11 (5) ◽  
pp. 313 ◽  
Author(s):  
Kaavya Shanker ◽  
Girish Suragimath ◽  
Sameer A Zope ◽  
Siddhartha A Varma ◽  
Ashwinirani Sr
Keyword(s):  
Sodium Hypochlorite ◽  
Case Control Study ◽  
Study Groups ◽  
Gingival Index ◽  
Gingival Inflammation ◽  
Intergroup Comparison ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Control Study

Objective: The objective of present study was to compare the efficacy of 0.2% chlorhexidine and 0.25% sodium hypochlorite as a mouthwash in controlling chronic gingivitis.Methods: A total of 80 patients suffering from chronic marginal gingivitis were recruited for the study. Non-surgical periodontal therapy was completed for all the patients to bring the gingival status to healthy levels. The patients were divided into two study groups with 40 patients in each group, Group A patients were asked to use 0.2% chlorhexidine mouthwash, and Group B patients used 0.25% sodium hypochlorite mouthwash as an adjunct to brushing twice daily for 2 weeks. After a period of 2 weeks, the gingival status was recorded using the oral hygiene index simplified (OHIS), plaque index (PI), and modified gingival index (MGI) and compared between the two groups.Results: The mean OHIS score for Group A was 1.38 and for Group B it was 1.05. The mean PI for Group A and B was 3.62 and 2.32, respectively. The mean MGI score for Group A was 1.22 and for Group B was 1.20. Group B showed better results than Group A. Intergroup comparison of OHIS and PI revealed significantly better results in Group B than Group A while MGI did not show any statistical difference on comparison.Conclusion: Nearly 0.25% sodium hypochlorite was more effective than 0.2% chlorhexidine in reducing the gingival inflammation. Thus, 0.25% sodium hypochlorite may represent an efficacious, safe and affordable antimicrobial agent in the prevention and treatment of gingival disease.

Comparison of Outcome with RNVL Compressive Plating in the Treatment of Extra Articular Supracondylar Femur Fractures

2021 ◽  
Vol 15 (12) ◽  
pp. 3410-3412
Author(s):  
Umair Ahmed ◽  
Umair Ahmad ◽  
Majid Zaheer ◽  
Ahmed Sadaqat ◽  
Zubair Khalid
Keyword(s):  
Functional Outcome ◽  
Prospective Trial ◽  
Study Groups ◽  
Retrograde Nailing ◽  
Femur Fractures ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Keywords Femur ◽  
Supracondylar Femur Fractures

Objective: To compare outcome of retrograde nailing versus locked compressive plating in the treatment of extra articular supracondylar femur fractures. Study Design: A randomized prospective trial. Place and Duration of the Study: Department of Orthopedic Surgery, Ghurki Hospital, Lahore, Pakistan from January 2020 to November 2021. Methodology: A total of 160 (80 in each group) patients aged between 18 to 50 years of both genders with extra articular supracondylar femur fractures were randomized into either retrograde nailing group (Group-A) or locked compressive plating (Group-B). Surgery time and functional outcome were compared in both groups. Demographic characteristics along with mean surgery time and functional outcomes were compared between both study groups. Results: In a total of 160 patients, mean age was 33.57±9.45 years. The mean age in Group-A was 33.24±8.61 years and in Group-B 33.90±10.26 years. In group-A, there were 49 (61.25%) male and 31 (38.75%) female cases while in group-B there were 56 (70%) male and 24 (30%) female cases. The mean surgery time in group-A was significantly less as compared to group-B (83.29±7.48 minutes vs. 106.62 ± 7.69 minutes, p<0.01). The frequency of excellent to good outcome was statistically higher in Group-A as compared to Group-B (p< 0.05). Conclusion: Retrograde nailing gave better results in the treatment of extra articular supracondylar femur fractures when compared with locked compressive plating. Retrograde nailing can be opted to reduce the surgery time and gain better functional outcome. Keywords: Femur fracture, nailing, plating, surgery time, functional outcome

The Efficacy of Mylohyoid Nerve Anesthesia in Dental Implant Placement at the Edentulous Posterior Mandibular Ridge

2012 ◽  
Vol 38 (2) ◽  
pp. 141-147 ◽  
Author(s):  
Hasan Ayberk Altug ◽  
Metin Sencimen ◽  
Altan Varol ◽  
Necdet Kocabiyik ◽  
Necdet Dogan ◽  
...  
Keyword(s):  
Dental Implant ◽  
Nerve Block ◽  
Inferior Alveolar Nerve ◽  
Alternative Methods ◽  
Implant Surgery ◽  
Implant Placement ◽  
Edentulous Mandible ◽  
Group A ◽  
Mylohyoid Nerve ◽  
Group B

The aim of this study is to evaluate the anesthetic efficacy of mylohyoid and buccal nerve anesthesia at the posterior edentulous mandible versus regional anesthetic block to the inferior alveolar nerve in dental implant surgery. The study was composed of 2 groups. In the first group (group A), 14 voluntary adults (7 female and 7 male) received local infiltrations of 1 mL articaine HCl 4% with epinephrine 1/200 000 to the ipsilateral mylohyoid and buccal nerves. In the second group (group B, control; 9 female and 5 male adults), the inferior alveolar and the buccal nerve blocks were performed. Visual analog scales were obtained from patients to determine the level of pain during incision, drilling, implant placement, and suturing stages of implant surgery. A combination of buccal and mylohyoid nerve block offered an acceptable level of anesthesia. Two patients from group A stopped the ongoing surgery and had extraregional anesthesia by inferior alveolar nerve block. In group B, patients were operated on successfully. Local anesthetic infiltrations of the mylohyoid and the buccal nerve may be considered alternative methods of providing a convenient anesthetic state of the posterior mandibular ridge.

scholarly journals Comparative study between conventional adenoidectomy and adenoidectomy using micro-debrider

2021 ◽  
Vol 37 (1) ◽  
Author(s):  
Essam A. Abo Elmagd ◽  
Mahmoud S. Khalifa ◽  
Beshoy K. Abeskharoon ◽  
Abdelrahman A. El Tahan
Keyword(s):  
Pain Score ◽  
Operative Time ◽  
Recovery Period ◽  
Study Groups ◽  
Average Amount ◽  
Left Behind ◽  
Adenoid Tissue ◽  
Group A ◽  
The Mean ◽  
Group B

Abstract Background Adenoidectomy is a common ENT procedure. This article aims to evaluate micro-debrider-assisted adenoidectomy as a substitute for the conventional curettage method. Results The study aimed to compare between two study groups: micro-debrider-assisted adenoidectomy (group A) and conventional adenoidectomy (group B). The average time needed in group A was 34.1 min while it was 22.83 min in group B (p<0.001). The average amount of blood lost in group A was 29.57 ml and 16.67 ml in group B (p<0.001). The resection was nearly complete in group A, while in group B, five (16.66%) cases had more than 50% of the adenoid tissue left behind. Four cases in group B had damage to collaterals while in group A no major injuries were noted. Postoperative pain has only been studied in cases where adenoidectomy solely was done. Candidates in group A (n=8) reported a pain score of 3.5-3.09 whereas candidates in group B (n=11) reported a pain score of 2.75-2.55. The mean recovery time was 2.8 days in group A and 8.23 days in group B (p<0.001). Conclusions Endoscopic adenoidectomy using micro-debrider is both an effective and safe adenoidectomy tool. The strengths of this technique include resection completeness, precise resection under vision, minor damage to collaterals, and a more rapid recovery period. Conventional adenoidectomy, however, scored better regarding lesser operative time and bleeding intraoperatively.

scholarly journals Evaluation of the Vertical Marginal Fit of CAD-CAM Zirconia, Pressable Lithium Disilicate, CAD-CAM Cobalt Chromium and Direct Metal Laser Sintered Cobalt Chromium Copings- An Invitro Comparative Analysis

2020 ◽  
Author(s):  
Nikita Kandi ◽  
Ajay Sabane ◽  
Abhijit Patil
Keyword(s):  
Lithium Disilicate ◽  
Cobalt Chromium ◽  
Marginal Gap ◽  
Marginal Fit ◽  
Custom Made ◽  
Cad Cam ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Group D

Introduction: The longevity, durability and success of conventional fixed partial dentures and single crowns have been known to be attributed to the marginal fit of these restorations. Therefore, many studies lay emphasis on accurate marginal fit of the crowns. It has been the focus of various investigations in literature. However, there is limited literature comparing marginal accuracy CAD/CAM zirconia, Pressable Lithium Disilicate, CAD/CAM Cobalt-Chromium and Direct Metal Laser Sintered (DMLS) copings. Aim: Verification and comparative evaluation of the vertical marginal adaptation of CAD/CAM Zirconia, Pressable lithium Disilicate, CAD/CAM Cobalt-Chromium and DMLS copings. Materials and Methods: This invitro study was planned with an aim to evaluate the vertical marginal adaptation of CAD/CAM Zirconia, Pressable Lithium Disilicate, CAD/CAM Cobalt-Chromium and DMLS copings. A custom- made metal master model was prepared simulating the shape and dimension of tooth preparation resembling a first premolar using a Computer Numerically Controlled (CNC) milling machine. An elastomeric impression of the custom-made stainless steel model was made with addition silicone using dual mix/double step technique. All impressions were poured in Type IV dental stone and 60 stone dies were obtained. The samples were divided into four groups and each group had 15 samples (stone dies)- CAD/CAM zirconia (Group A), Pressable Lithium Disilicate (Group B), CAD/CAM Cobalt Chromium (Group C), and Direct Metal Laser Sintered Cobalt Chromium copings (Group D). The marginal fit was analysed at four reference marks on the working die stone model i.e., 0° (Buccal surface), 90° (Mesial Surface), 180° (Lingual surface), and 270° (Distal surface) on the stone die using a stereomicroscope. Comparison between groups was done by using one-way ANOVA test followed by a Post-Hoc Tukey-Kramer multiple comparisons test. Results: The mean marginal gap (in μm) for Group A was 53.185±25.83, respectively. The mean marginal gap (in μm) of Group B was 66.08±22.27, respectively. The mean marginal gap (in μm) of Group C was 108.62±23.93, respectively. The mean marginal gap (in μm) of Group D was 28.54±13.53, respectively. Tukey’s post-hoc analysis showed that the mean difference in the vertical marginal gap in Group C and the other three groups was statistically significant (p<0.05) i.e., marginal discrepancy of group C was more than Group A, Group B and Group D. Conclusion: The marginal fit of DMLS copings is more accurate as compared to CAD/CAM Zirconia, Pressable Lithium Disilicate and CAD/CAM Cobalt-Chromium copings.

scholarly journals Accuracy And Efficiency Of Digital Implant Planning And Guided Implant Surgery

2021 ◽  
Vol 38 (SI-2) ◽  
pp. 148-156
Author(s):  
Ceylan ÇİÇEKDAĞI İLHAN ◽  
Mehmet DİKMEN ◽  
Emir YÜZBAŞIOĞLU
Keyword(s):  
Dental Implant ◽  
Digital Technologies ◽  
Computer Assisted ◽  
Error Sources ◽  
Implant Surgery ◽  
Guided Surgery ◽  
Potential Error ◽  
Implant Placement ◽  
Different Types

Advances in digital technologies offer 3D integrated solutions for digital implnat planning.Virtual implant placement and guided implant surgery are claimed to provide more predictable results even in complicated implant treatments.Technology is now capable to properly transfer the virtually planned optimal positon of implants to reality during surgery.However clinicians have to be aware of the potential deviation factors and risks of the different types of guided surgery systems to reduce the risk of complications.The aim of this review is to evaluate the efficiency and accuracy of different computer-assisted dental implant placement techniques and to discuss potential error sources for each technique.

scholarly journals Real Versus Virtual Position of Single Implants Installed in Premaxilla via Guided Surgery: A Proof of Concept Analyzing Positional Deviations

2018 ◽  
Vol 44 (6) ◽  
pp. 463-469
Author(s):  
Flávia Noemy Gasparini Kiatake Fontão ◽  
Jaques Luiz ◽  
Rubens Moreno de Freitas ◽  
Luis Eduardo Marques Padovan ◽  
Geninho Thomé ◽  
...  
Keyword(s):  
Pilot Study ◽  
Angular Deviation ◽  
Proof Of Concept ◽  
Implant Surgery ◽  
The Real ◽  
3 Dimensional ◽  
Guided Surgery ◽  
Implant Placement ◽  
The Mean ◽  
Dimensional Models

The aim of this research letter was to report the results of a pilot study designed to compare the real and virtual position of implants placed using computer-guided flapless implant surgery for single restorations in the premaxilla. A total of 8 patients (2 men and 6 women) with a mean age of 40 years old (range: 32–73 years) had a total of 11 implants inserted using a tooth-supported stereolithographic guide. After implant placement, the positions (coronal, central, and apical) and angulation of the implants installed in relation to those planned were determined via the superposition of pre- and postoperative 3-dimensional models using Dental Slice software (Bioparts, Brasília, Brazil). The mean angular deviation was 2.54° ± 0.71°. The deviations found for the coronal, central, and apical positions were 1.3 ± 0.77 mm, 1.49 ± 0.58 mm, and 2.13 ± 1.32 mm, respectively.

Comparative Study of effectiveness of mobilization with movement (MWM) and End range mobilization (ERM) techniques in frozen shoulder

2018 ◽  
Vol 4 (4) ◽  
pp. 519-522
Author(s):  
Jeyakumar S ◽  
Jagatheesan Alagesan ◽  
T.S. Muthukumar
Keyword(s):  
Range Of Motion ◽  
Frozen Shoulder ◽  
Type I ◽  
Mean Values ◽  
Functional Activities ◽  
Group A ◽  
The Mean ◽  
Group B

Background: Frozen shoulder is disorder of the connective tissue that limits the normal Range of motion of the shoulder in diabetes, frozen shoulder is thought to be caused by changes to the collagen in the shoulder joint as a result of long term Hypoglycemia. Mobilization is a therapeutic movement of the joint. The goal is to restore normal joint motion and rhythm. The use of mobilization with movement for peripheral joints was developed by mulligan. This technique combines a sustained application of manual technique “gliding” force to the joint with concurrent physiologic motion of joint, either actively or passively. This study aims to find out the effects of mobilization with movement and end range mobilization in frozen shoulder in Type I diabetics. Materials and Methods: 30 subjects both male and female, suffering with shoulder pain and clinically diagnosed with frozen shoulder was recruited for the study and divided into two groups with 15 patients each based on convenient sampling method. Group A patients received mobilization with movement and Group B patients received end range mobilization for three weeks. The outcome measurements were SPADI, Functional hand to back scale, abduction range of motion using goniometer and VAS. Results: The mean values of all parameters showed significant differences in group A as compared to group B in terms of decreased pain, increased abduction range and other outcome measures. Conclusion: Based on the results it has been concluded that treating the type 1 diabetic patient with frozen shoulder, mobilization with movement exercise shows better results than end range mobilization in reducing pain and increase functional activities and mobility in frozen shoulder.

Age related volume of cadaver-prostates in Bangladesh

1970 ◽  
Vol 4 (2) ◽  
pp. 74-77
Author(s):  
Rukshana Ahmed ◽  
Shamim Ara
Keyword(s):  
Prostate Gland ◽  
Age Groups ◽  
Clinical Settings ◽  
Cross Sectional ◽  
Medical College ◽  
Age Related ◽  
Group A ◽  
Key Words Prostate ◽  
The Mean ◽  
Group B

Pathological changes in the prostate gland occur commonly with advancing age including inflammation, atrophy, hyperplasia and carcinoma and a change in volume is also evident. Estimation of volume of prostate may be useful in a variety of clinical settings. A cross-sectional descriptive study was designed to see the changes in volume of the prostate with advancing age and done in the Department of Anatomy, Dhaka Medical College, Dhaka from August 2006 to June 2007. The study was performed on 70 post-mortem human prostates collected from the unclaimed dead bodies that were under examination in the Department of Forensic Medicine, Dhaka Medical College, Dhaka. The samples were divided into three age groups; group A (10-20 years), group B (21-40 years) and group C (41-70 years). Volume of the sample was measured by using the ellipsoid formula. The mean ± SD volume of prostate was 7.68 ± 3.64 cm3 in group A, 10.61 ± 3.99 cm3 in group B and 15.40 ± 6.31 cm3 in group C. Mean difference in volume between group A and group C, group B and group C were statistically significant (p<0.001). Statistically significant positive correlation was found between age and volume of prostate (r = + 0.579, p < 0.001). Key Words: Prostate; volume; Bangladeshi. DOI: 10.3329/imcj.v4i2.6501Ibrahim Med. Coll. J. 2010; 4(2): 74-77

Efficacy and Safety of Oral Ivermectin and Topical Permethrin in the Treatment of Scabies

2020 ◽  
Vol 33 (1) ◽  
pp. 41-47
Author(s):  
Mohsena Akhter ◽  
Ishrat Bhuiyan ◽  
Zulfiqer Hossain Khan ◽  
Mahfuza Akhter ◽  
Gulam Kazem Ali Ahmad ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Close Contact ◽  
Randomized Study ◽  
Sarcoptes Scabiei ◽  
Efficacy And Safety ◽  
Common Skin ◽  
Group A ◽  
The Mean ◽  
The Difference ◽  
Group B

Background: Scabies is one of the most common skin diseases in our country. It is caused by the mite Sarcoptes scabiei var hominis, which is an ecto-parasite infesting the epidermis. Scabies is highly contagious. Prevalence is high in congested or densely populated areas. Individuals with close contact with an affected person should be treated with scabicidal which is available in both oral and topical formulations. The only oral but highly effective scabicidal known to date is Ivermectin. Amongst topical preparations, Permethrin 5 % cream is the treatment of choice. Objective: To evaluate the efficacy & safety of oral Ivermectin compared to topical Permethrin in the treatment of scabies. Methodology: This prospective, non-randomized study was conducted at the out-patient department of Dermatology and Venereology of Shaheed Suhrawardy Medical College & Hospital over a period of 6 months, from August 2016 to January 2017. The study population consisted of one hundred patients having scabies, enrolled according to inclusion criteria. They were divided into two groups. group A was subjected to oral Ivermectin and the group B to Permethrin 5% cream. Patients were followed up on day 7 and 14 for assessment of efficacy and safety. Result: The mean scoring with SD in group A (Ivermectin) and group B (Permethrin) were 8.26 ± 2.22 and 7.59 ± 2.01 respectively at the time of observation. The difference between the mean score of the two group is not significant (p=0.117) the mean scoring with SD in group A and group B were 4.54 ± 2.05 and 1.64 ± 1.84 respectively at 7thdays. The difference between the mean score of the two group is significant (p<0.001). The mean scoring with SD in group A and group B were 2.68± 2.35 and .36± 1.10 respectively at 14th day difference between the mean score of the group is significant (p<0.001). Conclusion: Topical application of permethrin 5% cream is more effective and safer than oral Ivermectin in the treatment of scabies. TAJ 2020; 33(1): 41-47

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